Math

Real World Problems

100

Sally went to the store with $20. She bought 3 gallons of milk for $18. The sales tax was 0.08 per dollar. Did Sally have enough money? If she did, how much change did she get?

Is it yes, she got 0.74 back? 

200

Joe's Aunt was $2,000 in debt. His aunt's paycheck is $500 each week, but she has a bill of $250 every 2 weeks. How many weeks would it take her to get out of debt?

What is 5 weeks?

300

Harold had just finished business school after getting a student loan. The debt was $20,000 and it increases by $500 a month. His salary is $2000 every 2 months. How long will it take for Harold to get out of debt?

Is it 

Adding Integers

100

-7+16

What is 9?

200

-27 + -16

What is -43?

300

503 + -267 + 83

What is 319?

Subtracting Integers

100

5 - (-8)

What is 13?

200

18 - 27

What is -9?

300

87 - (-54) - 3

Is it 138?

Adding Rational Numbers

100

5/10 + -2/10

What is 3/10?

200

7.98 + -2.79

What is 5.19?

300

4/15 + (-3 2/10)

What is -3 3/5?

Subtracting Rational Numbers

100

-8.9 - 4.01

Is it -12.91?

200

4/10 - 1 2/4

What is -1 1/5?